数字地图的接边方法研究

为解决我国数字化测图生产中数字地图的相邻图幅自动接边的难题,本文提出了一种可适用于微机的数字地图的接边方法——要素分类接边法。该方法分三步完成接边:(1)提取接边要素对;(2)接边要素对自动分类接边;(3)分幅剪辑与拼接。生产试验说明,这种接边方法可适用于各种大小比例尺的数字地图接边,可达到较高的自动化程度,接边效果满意。

ON THE METHOD OF EDGE MATCH OF DIGITAL MAPS

In order to solue the puzzle of automatic edge match of the adjacent digital maps, an approach of automatic edge match 6f digital maps, which can be used on microcomputer, i. e. The method based on element classification, has been proposed in this paper. This approach is separated into three stages: (1)The extraction of elements pair for map edge match; (2)Automatic map edge match based on elements pair calssification; (3)Map Chipping and merging. The result of the frial use in the production of this approach illustrates that the lever of automatizition of map edge match is high,it can be use for digital maps with varied Scale,both large add small,and the effect of map edge match is satisfactory.